2147242 has 16 divisors (see below), whose sum is σ = 3359232. Its totient is φ = 1028560.

The previous prime is 2147237. The next prime is 2147251. The reversal of 2147242 is 2427412.

It is a happy number.

It is a super-2 number, since 2×2147242² = 9221296413128, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2 + 1 + 4⁴ + 7⁵ + 2¹⁵ + 4⁴ + 2²¹ .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4767 + ... + 5197.

It is an arithmetic number, because the mean of its divisors is an integer number (209952).

2^2147242 is an apocalyptic number.

2147242 is a deficient number, since it is larger than the sum of its proper divisors (1211990).

2147242 is a wasteful number, since it uses less digits than its factorization.

2147242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533.

The product of its digits is 896, while the sum is 22.

The square root of 2147242 is about 1465.3470578672. The cubic root of 2147242 is about 129.0110761076.

The spelling of 2147242 in words is "two million, one hundred forty-seven thousand, two hundred forty-two".